Use of porphyrins and metalloporphyrins in the treatment of diseases caused by human immunodeficiency viruses

A use of the compound of the formula; wherein either R₁, R₂, R₃, R₄, R₅, R₆, R₇ and R₈ are the same or different, each hydrogen atom, a lower alkyl group, a lower alkenyl group, a hydroxy(lower)alkyl group, a carboxy group or a carboxy(lower)alkyl group, R₉ is hydrogen atom or a carboxy(lower)alkyl group, with the proviso that at least one of R₁, R₂, R₃, R₄, R₅, R₆, R₇, R₈ and R₉ is a hydroxy(lower)alkyl group, a carboxy group or a carboxy(lower)alkyl group, and R₁₀ is hydrogen atom or a lower alkyl group, or R₆ and R₁₀ together form the group -CO-CH₂- and R₁, R₂, R₃, R₄, R₅, R₇, R₈ and R₉ are as defined above, and the symbol of a line and a dotted line means a single bond or a double bond, an N-(lower)alkyl derivative, a metal coordination compound, a physiologically acceptable and hydrolyzable ester or a physiologically acceptable salt thereof for the manufacture of a medicament for treatment of diseases caused by HIVs.